Relationship between Body and Otolith Morphological Characteristics of Sabre Squirrelfish (Sargocentron spiniferum) from the Southern Red Sea: Difference between Right and Left Otoliths

Type Article
Date 2021
Language English
Author(s) Osman Yassein1, Mahe KeligORCID2, El-Mahdy Samia1, Mohammad Ashraf1, Mehanna Sahar1
Affiliation(s) 1 : National Institute of Oceanography and Fisheries, NIOF, Cairo 11694, Egypt
2 : Ifremer, Fisheries Laboratory, Sclerochronology Centre, 62200 Boulogne-Sur-Mer, France
Source Oceans (2673-1924) (MDPI), 2021 , Vol. 2 , N. 3 , P. 624-633
DOI 10.3390/oceans2030035
Keyword(s) fish size, otolith shape, head side, Sargocentron spiniferum, red sea, asymmetry
Abstract

Otolith morphology analysis is one of the main tools used for fish or fish stock identification. Moreover, otolith shape can also be used in animal dietary studies (stomach content) for the identification of prey fishes and their size according to the relationship between fish and otolith sizes. In the present study, the relationship between fish length and otolith morphological dimensions was investigated for the sabre squirrelfish, Sargocentron spiniferum (Forsskal, 1775) (family: Holocentridae). Samples of 185 fish were collected from the coast of the Red Sea, Egypt. To analyze the relationship between fish and otolith, otolith morphometric measurements (length, width, area, perimeter, weight, sulcus, and ostium) and shape factors (aspect ratio, compactness, form factor, rectangularity, roundness, ellipticity, squareness) describing the outline shape were extracted using image analysis. Generalized linear models were applied for the relationship between body length and each otolith morphology feature. From the relationships between the total length of fish and fourteen morphology features, only otolith length, caudal length, and squareness were significantly correlated with fish size. Our results provide more information for the relationship between fish length and otolith morphometric features.

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How to cite 

Osman Yassein, Mahe Kelig, El-Mahdy Samia, Mohammad Ashraf, Mehanna Sahar (2021). Relationship between Body and Otolith Morphological Characteristics of Sabre Squirrelfish (Sargocentron spiniferum) from the Southern Red Sea: Difference between Right and Left Otoliths. Oceans, 2(3), 624-633. Publisher's official version : https://doi.org/10.3390/oceans2030035 , Open Access version : https://archimer.ifremer.fr/doc/00720/83251/